Installing NetBSD on Virtual Box

Hello,
I am a new user. I want to install NetBSD on a virtual machine
(Virtual Box) so I can experiment with it a little. I downloaded the
5.0.2 ISO and I booted my VM from that ISO. I chose option 1 "Install
NetBSD" and soon after I found myself staring at a nasty-looking error
in place of an installer. Here are the last few messages:
-------------%<-------------
acpiacad0: AC adapter online.
auich0: measured ac97 link rate at 44140 Hz, will use 48000
Hzuvm_fault(0xc0b26d00, 0xb000, 1) -> 0xe
fatal page fault in supervisor mode
trap type 6 code 0 eip c0100d20 cs 8 eflags 3b82 cr2 bb80 ilevel 0
kernel: supervisor trap page fault, code=0
Stopped in pid 0.17 (ytem) at netbsd:Xspllower+0x10: cmpsb (%esi),%es(%edi)
db{0}>
-------------%<-------------
Needless to say, this is all Greek to me. But I hope that someone on
this list can make some sense of the above output and suggest a course
of action.
Cheers,
Daniel.
--
Intolerant people should be shot.